ZipRecruiter

Log In

1

Project Engineer I Jobs in O Fallon, IL (NOW HIRING)

Jost Chemical Co Inc

Project Engineer

Saint Louis, MO · On-site

$80K - $100K/yr

Project Engineer I Are you ready to embark on a career where innovation meets excellence? At Jost Chemical Company, we're on a mission to push the boundaries of chemical manufacturing, delivering ...

Jost Chemical Co Inc

Project Engineer

Saint Louis, MO · On-site

$80K - $100K/yr

Project Engineer I Are you ready to embark on a career where innovation meets excellence? At Jost Chemical Company, we're on a mission to push the boundaries of chemical manufacturing, delivering ...

Jost Chemical Co Inc

Project Engineer

Saint Louis, MO · On-site

$80K - $100K/yr

Project Engineer I Are you ready to embark on a career where innovation meets excellence? At Jost Chemical Company, we're on a mission to push the boundaries of chemical manufacturing, delivering ...

Urgent

Jost Chemical Co Inc

Project Engineer

Saint Louis, MO · On-site

$80K - $100K/yr

Project Engineer I Are you ready to embark on a career where innovation meets excellence? At Jost Chemical Company, we're on a mission to push the boundaries of chemical manufacturing, delivering ...

Urgent

Leonardo DRS

Project Engineer I

Bridgeton, MO · On-site

$104K - $140K/yr

As a Project Engineer level 1 at Leonardo DRS Land Systems, you will be responsible for leading all engineering efforts for a project or projects on time and budget. A successful candidate will be a ...

Leonardo DRS

Project Engineer I

Bridgeton, MO

$104K - $140K/yr

As a Project Engineer level 1 at Leonardo DRS Land Systems, you will be responsible for leading all engineering efforts for a project or projects on time and budget. A successful candidate will be a ...

Trilon

Transportation Project Engineer I/II

Belleville, IL · On-site

$75K - $99K/yr

We are currently seeking a Transportation Engineer (I/II) to help serve our connection of clients ... Support preparation of project documents such as cost estimates, technical reports, design ...

next page

Showing results 1-20

All JobsProject Engineer I JobsProject Engineer I Jobs in O'Fallon, IL

Project Engineer I information

See O Fallon, IL salary details

$42K

$84.6K

$126.9K

How much do project engineer i jobs pay per year?

As of Jul 15, 2026, the average yearly pay for project engineer i in O'Fallon, IL is $84,553.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,000.00 and $96,500.00 per year, depending on experience, location, and employer.

What is the difference between Project Engineer I vs Project Engineer II?

AspectProject Engineer IProject Engineer II
Required CredentialsBachelor's degree in engineering or related field; some certifications preferredBachelor's degree; often more certifications or experience required
Work EnvironmentEntry-level role, supporting project teams, on-site and officeMore independent responsibilities, overseeing parts of projects
Employer & Industry UsageCommon in construction, manufacturing, civil engineeringSimilar industries, with increased scope and responsibility

The main difference between Project Engineer I and Project Engineer II lies in experience and responsibility. Project Engineer I is an entry-level position focused on supporting project tasks, while Project Engineer II involves more independent work and oversight. Both roles require similar educational backgrounds, but the II typically demands more experience or certifications. Understanding these distinctions helps candidates and employers align expectations and career progression.

What are the key skills and qualifications needed to thrive as a Project Engineer I, and why are they important?

To thrive as a Project Engineer I, you typically need a bachelor's degree in engineering, strong problem-solving abilities, and a foundational understanding of project management principles. Familiarity with CAD software, project scheduling tools like Microsoft Project, and basic knowledge of industry codes or standards is often required. Effective communication, teamwork, and adaptability help you collaborate with cross-functional teams and manage changing project requirements. These skills and qualities are essential to ensure projects are completed efficiently, safely, and within scope and budget.

What are some common challenges faced by a Project Engineer I, and how can they be addressed?

As a Project Engineer I, one common challenge is balancing multiple tasks and deadlines while ensuring project specifications are met. You may also encounter difficulties coordinating with cross-functional teams or managing changes in project scope. To address these challenges, effective time management, clear communication, and proactive problem-solving are essential. Seeking guidance from senior engineers and utilizing project management tools can also help you stay organized and meet expectations.

What does a Project Engineer I do?

A Project Engineer I is an entry-level engineering professional who assists in planning, coordinating, and executing engineering projects within an organization. They typically work under the supervision of senior engineers or project managers, helping to prepare project documentation, monitor progress, and ensure that technical standards and deadlines are met. Their role may involve collaborating with different teams, troubleshooting issues, and supporting project delivery from start to finish. This position is ideal for recent engineering graduates looking to gain practical experience and grow their project management skills.
What are popular job titles related to Project Engineer I jobs in O'Fallon, IL? For Project Engineer I jobs in O'Fallon, IL, the most frequently searched job titles are:
What cities near O'Fallon, IL are hiring for Project Engineer I jobs? Cities near O'Fallon, IL with the most Project Engineer I job openings:
Project Engineer I jobs near you
Infographic showing various Project Engineer I job openings in O'Fallon, IL as of July 2026, with employment types broken down into 94% Full Time, 3% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $84,553 per year, or $40.7 per hour.
Project Engineer I

Project Engineer I

Guarantee Electrical

Saint Louis, MO • On-site

Full-time

Re-posted 10 days ago

Job description

Project Engineer I

Location: Varies by project

Reports to: Project Manager


Build Your Foundation. Learn the Craft. Power What Matters.

Since 1904, Guarantee Electrical has been trusted to deliver complex electrical solutions for projects that matter. From supporting the World's Fair to powering today's most advanced mission critical facilities, we continue to build on a legacy of craftsmanship, partnership, and innovation.

The Project Engineer I role is an entry point into that legacy and the future we are building. This position supports Mission Critical projects and may require full-time presence on a job site. It is designed for someone eager to learn, highly organized, and ready to grow within a fast-paced construction environment.


Position Purpose

The Project Engineer I provides essential administrative and technical support to the project team, helping ensure projects are executed safely, accurately, and efficiently. This role focuses on document control, coordination support, and foundational project management skills under the guidance of experienced project leaders.


Key Responsibilities

  • Maintain organized project documentation using consistent filing systems
  • Assist with drawing and specification control and distribution
  • Prepare, track, and distribute submittals and RFIs
  • Support material and equipment tracking and verification
  • Document project meetings and follow up on action items
  • Assist with change order documentation and justification
  • Support subcontractor coordination and field communication
  • Contribute to project closeout documentation
  • Perform basic material quantity takeoffs
  • Follow safety protocols and support a strong safety culture
  • Actively seek learning opportunities and professional development

What You Bring

  • Strong organizational skills and attention to detail
  • Clear written and verbal communication
  • Willingness to learn and take direction
  • Basic understanding of construction terminology and processes
  • Familiarity with Microsoft Office and construction software tools

Qualifications

  • Associate's degree in construction management, engineering, or related field or equivalent experience
  • Entry level construction or engineering experience preferred
  • Valid driver's license and ability to travel to project sites

Why Guarantee Electrical


When you join Guarantee Electrical, you are not just starting a job. You are beginning a career with a company that invests in your growth from day one.

We are employee owned, which means the work you do today helps build your future tomorrow. As a partner in the business, you have a direct stake in our long-term success and a clear path to ownership over time.

We offer defined career paths that provide clarity on how you can grow from Project Engineer to future leadership roles. You will learn alongside experienced professionals who are committed to teaching, mentoring, and helping you succeed.

Our culture is grounded in Living our Guarantees. That means doing what we say, putting safety and people first, supporting one another, and taking pride in the work we deliver. You will be part of a team that values integrity, accountability, and partnership at every level.


Guarantee Electrical is an Equal Opportunity Employer committed to building a diverse and inclusive team.